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Large Hadron Collider Forced to Halt

Plans to begin smashing particles at the Large Hadron Collider may be delayed after a magnet failure forced engineers to halt work. The failure, known as a quench, caused some of the LHC’s super-cooled magnets to heat up by as much as 100 degrees. The fire brigade were called out after a tonne of liquid helium leaked into the tunnel at Cern, near Geneva